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Finding the Fourth Proportional to 70,497.50, 97,288.07 and 38,666.32

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Solution

The fourth proportional to 70,497.50, 97,288.07 and 38,666.32 is: 53,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.50 : 97,288.07 = 38,666.32 : x
  2. Step 2: Convert to fraction form
    70,497.50/97,288.07 = 38,666.32/x
  3. Step 3: Cross multiply
    70,497.50x = 97,288.07 × 38,666.32
  4. Step 4: Simplify right side
    70,497.50x = 3,761,771,453.47
  5. Step 5: Solve for x
    x = 3,761,771,453.47/70,497.50
  6. Step 6: Final answer
    x = 53,360.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.