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Finding the Fourth Proportional to 10,355.60, 15,518.04 and 7,606.16

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Solution

The fourth proportional to 10,355.60, 15,518.04 and 7,606.16 is: 11,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.60 : 15,518.04 = 7,606.16 : x
  2. Step 2: Convert to fraction form
    10,355.60/15,518.04 = 7,606.16/x
  3. Step 3: Cross multiply
    10,355.60x = 15,518.04 × 7,606.16
  4. Step 4: Simplify right side
    10,355.60x = 118,032,695.13
  5. Step 5: Solve for x
    x = 118,032,695.13/10,355.60
  6. Step 6: Final answer
    x = 11,397.96

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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.