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Finding the Fourth Proportional to 62,779.68, 86,570.64 and 46,838.88

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Solution

The fourth proportional to 62,779.68, 86,570.64 and 46,838.88 is: 64,588.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,779.68 : 86,570.64 = 46,838.88 : x
  2. Step 2: Convert to fraction form
    62,779.68/86,570.64 = 46,838.88/x
  3. Step 3: Cross multiply
    62,779.68x = 86,570.64 × 46,838.88
  4. Step 4: Simplify right side
    62,779.68x = 4,054,871,818.48
  5. Step 5: Solve for x
    x = 4,054,871,818.48/62,779.68
  6. Step 6: Final answer
    x = 64,588.92

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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.