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Finding the Fourth Proportional to 46,720.60, 70,080.90 and 28,058.20

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Solution

The fourth proportional to 46,720.60, 70,080.90 and 28,058.20 is: 42,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,720.60 : 70,080.90 = 28,058.20 : x
  2. Step 2: Convert to fraction form
    46,720.60/70,080.90 = 28,058.20/x
  3. Step 3: Cross multiply
    46,720.60x = 70,080.90 × 28,058.20
  4. Step 4: Simplify right side
    46,720.60x = 1,966,343,908.38
  5. Step 5: Solve for x
    x = 1,966,343,908.38/46,720.60
  6. Step 6: Final answer
    x = 42,087.30

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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.