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Finding the Fourth Proportional to 42,009.16, 63,129.48 and 22,302.48

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Solution

The fourth proportional to 42,009.16, 63,129.48 and 22,302.48 is: 33,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.16 : 63,129.48 = 22,302.48 : x
  2. Step 2: Convert to fraction form
    42,009.16/63,129.48 = 22,302.48/x
  3. Step 3: Cross multiply
    42,009.16x = 63,129.48 × 22,302.48
  4. Step 4: Simplify right side
    42,009.16x = 1,407,943,965.11
  5. Step 5: Solve for x
    x = 1,407,943,965.11/42,009.16
  6. Step 6: Final answer
    x = 33,515.17

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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.