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Finding the Fourth Proportional to 70,641.23, 97,486.70 and 38,810.93

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Solution

The fourth proportional to 70,641.23, 97,486.70 and 38,810.93 is: 53,560.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.23 : 97,486.70 = 38,810.93 : x
  2. Step 2: Convert to fraction form
    70,641.23/97,486.70 = 38,810.93/x
  3. Step 3: Cross multiply
    70,641.23x = 97,486.70 × 38,810.93
  4. Step 4: Simplify right side
    70,641.23x = 3,783,548,808.14
  5. Step 5: Solve for x
    x = 3,783,548,808.14/70,641.23
  6. Step 6: Final answer
    x = 53,560.07

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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.