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Finding the Fourth Proportional to 70,858.04, 97,779.61 and 39,026.94

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Solution

The fourth proportional to 70,858.04, 97,779.61 and 39,026.94 is: 53,854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,858.04 : 97,779.61 = 39,026.94 : x
  2. Step 2: Convert to fraction form
    70,858.04/97,779.61 = 39,026.94/x
  3. Step 3: Cross multiply
    70,858.04x = 97,779.61 × 39,026.94
  4. Step 4: Simplify right side
    70,858.04x = 3,816,038,618.61
  5. Step 5: Solve for x
    x = 3,816,038,618.61/70,858.04
  6. Step 6: Final answer
    x = 53,854.70

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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.