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Finding the Fourth Proportional to 46,684.80, 70,036.20 and 20,030.40

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Solution

The fourth proportional to 46,684.80, 70,036.20 and 20,030.40 is: 30,049.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,684.80 : 70,036.20 = 20,030.40 : x
  2. Step 2: Convert to fraction form
    46,684.80/70,036.20 = 20,030.40/x
  3. Step 3: Cross multiply
    46,684.80x = 70,036.20 × 20,030.40
  4. Step 4: Simplify right side
    46,684.80x = 1,402,853,100.48
  5. Step 5: Solve for x
    x = 1,402,853,100.48/46,684.80
  6. Step 6: Final answer
    x = 30,049.46

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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.