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Finding the Fourth Proportional to 70,475.16, 97,253.16 and 38,643.38

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Solution

The fourth proportional to 70,475.16, 97,253.16 and 38,643.38 is: 53,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,475.16 : 97,253.16 = 38,643.38 : x
  2. Step 2: Convert to fraction form
    70,475.16/97,253.16 = 38,643.38/x
  3. Step 3: Cross multiply
    70,475.16x = 97,253.16 × 38,643.38
  4. Step 4: Simplify right side
    70,475.16x = 3,758,190,551.60
  5. Step 5: Solve for x
    x = 3,758,190,551.60/70,475.16
  6. Step 6: Final answer
    x = 53,326.45

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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.