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Finding the Fourth Proportional to 8,303,792.30, 12,455,688.45 and 8,303,792.30

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Solution

The fourth proportional to 8,303,792.30, 12,455,688.45 and 8,303,792.30 is: 12,455,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303,792.30 : 12,455,688.45 = 8,303,792.30 : x
  2. Step 2: Convert to fraction form
    8,303,792.30/12,455,688.45 = 8,303,792.30/x
  3. Step 3: Cross multiply
    8,303,792.30x = 12,455,688.45 × 8,303,792.30
  4. Step 4: Simplify right side
    8,303,792.30x = 103,429,449,842,308.92
  5. Step 5: Solve for x
    x = 103,429,449,842,308.92/8,303,792.30
  6. Step 6: Final answer
    x = 12,455,688.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.